<template>
  <div class="login-container">
    <div class="login-box">
      <!-- 头像区域 -->
      <div class="avatar-box">
        <img src="../../assets/logo.png" alt="">
      </div>
      <!-- 登录表单区域 -->
      <el-form ref="form" :model="form" :rules="rules" label-width="0px" class="login-form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="form.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="form.password" prefix-icon="el-icon-lock" type="password"></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btnGroup">
          <el-button type="primary" @click="submitForm('form')">登录</el-button>
          <el-button type="info" @click="resetForm('form')">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
  export default {
    name: 'MyLogin',
    data() {
      return {
        form: {
          username: 'admin',
          password: '123456'
        },
        rules: {
          username: [{
              required: true,
              message: '请输入用户名称',
              trigger: 'blur'
            },
            {
              min: 3,
              max: 10,
              message: '长度在 3 到 10 个字符',
              trigger: 'blur'
            }
          ],
          password: [{
              required: true,
              message: '请输入用户密码',
              trigger: 'blur'
            },
            {
              min: 6,
              max: 12,
              message: '长度在 6 到 12 个字符',
              trigger: 'blur'
            }
          ]
        }
      }
    },
    methods: {
      submitForm(formName) {
        this.$refs[formName].validate(async valid => {
          if (!valid) return
          const {
            data: res
          } = await this.$http.post("/login", this.form)
          if (res.meta.status != 200) {
            this.$message({
              showClose: true,
              message: '登录失败',
              type: 'error'
            })
          } else {
            this.$message({
              showClose: true,
              message: '登录成功',
              type: 'success'
            })
            window.sessionStorage.setItem('token', res.data.token)
            this.$router.push('/home')
          }
        })
      },
      resetForm(formName) {
        this.$refs[formName].resetFields()
      }
    }
  }

</script>
<style lang="less" scoped>
  .login-container {
    background-color: #2b4b6b;
    height: 100vh;
  }

  .login-box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .avatar-box {
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      background-color: #fff;

      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }

  .login-form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }

  .btnGroup {
    display: flex;
    justify-content: right
  }

</style>
